T/CEEIA 426-2020 Intelligent integrated high-voltage AC vacuum contact for power capacitor switching

Scope

Scope: This standard specifies the requirements for the use of intelligent integrated high-voltage AC vacuum contactors for switching power capacitors in terms of operating conditions, terminology, rated values, structure, and testing. This standard applies to intelligent integrated AC vacuum contactors for switching power capacitors with a rated voltage of 3.6 kV to 24 kV and a frequency of 50 Hz or lower, installed indoors. Main technical content: Intelligent integrated AC high-voltage vacuum contactors for switching power capacitors control the "near-zero switching" of high-voltage power capacitors during commissioning and decommissioning, reduce the inrush current during closing and the arc during opening, significantly reduce the current and voltage shocks to the power grid, high-voltage power capacitors, and the product itself. They can frequently switch high-voltage power capacitors, improve the response speed and compensation accuracy of high-voltage reactive power compensation, and thus enhance the effectiveness and economic benefits of high-voltage reactive power compensation. The technical performance and parameters of this standard are based on the design, manufacturing, and operation experience of intelligent high-voltage AC contactors at home and abroad. Since intelligent integrated AC high-voltage contactors are still in the development stage, the relevant technical requirements of this standard will be gradually revised and improved as the technology develops and matures.

Development Information

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